Functions (Need) Exercises

# | include: false
import numpy as np
import pandas as pd

np.random.seed(256852)

Exercise 1 (Do you know why?) ☻

The following code works as expected despite not having an else statement. Please use a Markdown cell to explain why?

def greeting(name):
    if name == 'Batman':
        return 'Hello Batman! So, nice to meet you!'
    return f'Hello {name}!'

Exercise 2 (Chubby or not) ☻

Write a Python function named calculate_bmi.

• The function should take two parameters:
  weight (in kilograms) and height (in meters).
• The function should calculate the BMI (Body Mass Index) using the formula BMI = weight / (height ** 2).
• Based on the calculated BMI, the function should return a string indicating the BMI category based on the following criteria:

Category	BMI Range
Underweight	BMI less than 18.5
Normal weight	BMI between 18.5 and 24.9
Overweight	BMI between 25 and 29.9
Obesity	BMI 30 or more